Hopkins farm, Haddonfield (Cretaceous of the United States)

Also known as Hadrosaurus type

Where: Camden County, New Jersey (39.9° N, 75.0° W: paleocoordinates 39.2° N, 44.9° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Woodbury Formation (Matawan Group), Early/Lower Campanian (83.5 - 70.6 Ma)

• bed-level stratigraphic resolution

Environment/lithology: estuary or bay; lithified, micaceous, green, blue marl

• "tenacious" green marl, also described as "dark blue approaching black, micaceous, stiff, and tenacious. Upon free exposure to air, it becomes, after a week or two, light bluish gray in color, and then it crumbles easily."

Size classes: macrofossils, mesofossils

Collected by J. Hopkins, W. Foulke in 1838–1858; reposited in the ANSP

Collection methods: salvage, quarrying, surface (float), surface (in situ), mechanical,

• Originally discovered by Mr. John E. Hopkins while digging marl on his farm "about twenty years ago," then excavated more thoroughly by William Parker Foulke.

Primary reference: W. P. Foulke. 1858. [On the fossil bones, shells and wood from Haddonfield]. Proceedings of the Academy of Natural Sciences of Philadelphia 10:213-215 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 48725: authorized by Matthew Carrano, entered by Matthew Carrano on 30.03.2005, edited by Kaitlin Maguire and Mark Uhen

Creative Commons license: CC BY (attribution)

Taxonomic list

 Arcida - Arcidae
 Myalinida - Inoceramidae
"Inoceramus involutus" = Volviceramus involutus4
"Inoceramus involutus" = Volviceramus involutus4 Sowerby 1828 clam
 Pectinida - Limidae
 Pectinida - Anomiidae
Anomia argentaria4 Morton 1833 jingle
 Ostreida - Gryphaeidae
Exogyra costata4 Say 1971 oyster
 Ostreida - Flemingostreidae
"Ostrea larva" = Agerostrea ungulatus4 Schlotheim 1813 oyster
Ostrea plumosa4 Morton 1833 oyster
 Ostreida - Ostreidae
"Ostrea tecticosta" = Cubitostrea tecticosta4 Gabb 1860 oyster
 Ostreida - Pinnidae
Pinna laqueata4 Conrad 1858 oyster
 Mytilida - Mytilidae
"Modiola juliae" = Modiolus4
"Modiola juliae" = Modiolus4 mussel
 Carditida - Astartidae
 Carditida - Crassatellidae
 Carditida - Carditidae
 Pholadida - Corbulidae
 Cardiida - Veneridae
Legumen apressus4 venus clam
Legumen ellipticus4 venus clam
Dosinia depressa4 venus clam
 Cardiida - Tellinidae
"Linearia metastriata" = Linearis4, Tellina eborea4
"Linearia metastriata" = Linearis4 tellin clam
Tellina eborea4 tellin clam
 Cardiida - Cardiidae
"Cardium multiradiatum" = Trachycardium multiradiatum4, Cardium enfaulense4
"Cardium multiradiatum" = Trachycardium multiradiatum4 Sowerby 1846 cockle
 Trigoniida - Trigoniidae
 Nuculida - Nuculidae
 Protobranchia - Nuculanidae
"Leda protexta" = Nuculana4, "Leda longifrons" = Nuculana4
"Leda protexta" = Nuculana4 pointed nut clam
"Leda longifrons" = Nuculana4 pointed nut clam
 Naticoidea - Naticidae
 Sorbeoconcha - Siliquariidae
"Siliquaria biplicata" = Tenagodus4
"Siliquaria biplicata" = Tenagodus4 snail
 Sorbeoconcha - Turritellidae
Turritella vertebroides4 Morton 1834 turret shell
 Pyramidelloidea - Pyramidellidae
 Dentaliida - Dentaliidae
 Ammonitida - Placenticeratidae
"Ammonites placenta" = Placenticeras placenta4
"Ammonites placenta" = Placenticeras placenta4 DeKay 1828 ammonite
 Ammonitida - Scaphitidae
Scaphites iris4 ammonite
 Euselachii - Mitsukurinidae
Scapanorhynchus texanus2 Roemer 1852 goblin shark
 Salmoniformes - Enchodontidae
Enchodus sp.2 Agassiz 1843
 Testudines -
"Dollochelys atlantica" = Catapleura repanda2
"Dollochelys atlantica" = Catapleura repanda2 Cope 1868 sea turtle
NJSM 12757
 Neornithischia - Hadrosauridae
Hadrosaurus foulkii n. gen. n. sp.3
Hadrosaurus foulkii n. gen. n. sp.3 Leidy 1858 hadrosaurine
ANSP 10005
Coniferophyta indet.4
"fossilized coniferous wood"